FILE - In this Feb. 10, 2016, file photo, the closed LTV Steel taconite plant sits idle near Hoyt Lakes, Minn. The site, which closed in 2001, may return to life as part of Minnesota's first copper-nickel mine, owned by PolyMet Mining Corp. The contentious copper-nickel mine in northeastern Minnesota took another step forward Friday, Jan. 5, 2018, when state regulators released a crucial draft permit for public comment. (AP Photo/Jim Mone, File)
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